5 letter words:
rubai7,
urbia7,
4 letter words:
zobu15,
izar13,
riza13,
zori13,
abri6,
baur6,
biro6,
boar6,
bora6,
brio6,
bura6,
obia6,
rabi6,
riba6,
urao4,
3 letter words:
biz14,
azo12,
riz12,
zoa12,
abo5,
arb5,
bar5,
bio5,
boa5,
boi5,
bor5,
bra5,
bro5,
bru5,
bur5,
oba5,
obi5,
orb5,
rib5,
rob5,
rub5,
urb5,
air3,
oar3,
ora3,
our3,
rai3,
ria3,
2 letter words:
za11,
zo11,
ab4,
ba4,
bi4,
bo4,
ob4,
ai2,
ar2,
io2,
oi2,
or2,
ou2,
ur2,